OpenTechnical

OT-2026-000005842

Publication integrity record

Bellows cup vacuum gripper, two stage ejector, pressure verified, vented after set down, plastic cups

This page is the evidence record. It changes as evidence arrives: a trusted timestamp, an independent retrieval, a custody deposit. The disclosure itself (/p/OT-2026-000005842) never changes.

Identity and time

Publication numberOT-2026-000005842 · never reused
Internal UUID01a0a946-a93d-7f43-868b-1460182a592a · UUIDv7, RFC 9562
Publication timestamp2026-09-16T08:12:55.488865Z
Recorded by the publication infrastructure in UTC, not taken from the submission.
Canonical URLhttps://opentechnical.org/p/OT-2026-000005842
StatusPUBLIC

Content hashes

Canonical text5f27305ab1dad6f8a56ed4cb2378045cb248df3df2064f8ff1a2146ec9fbe414
Markdown3383528cb022714ee77546876217473cc420a48eade1c8bc217455f760bd044a
PDF
Publication page7533749f589f4801712192bc94b5c6ee84a207af7479521cb59c27d287d0490e
Manifestfeb4e71605ea3ae52ab7c2aff925ad4ec5a7971d39a9c58d0870fa7e61a44464

SHA-256, lowercase hex, over the exact bytes of each published file. Every figure is hashed individually in the manifest.

Manifest signature

AlgorithmEd25519 · key OT-SIGN-2026-01 · Verified
SignatureQfhvCrVAXDL+zT0Ud/0SU973R+FiaObpp0L0LpqkXZeQeAI2vDIhqMfctEwmz52OVCUSrnke6CiYN81ky6rQDQ==
Public key/integrity/keys · every key we have ever used stays published

Trusted external timestamp

timestamp.digicert.com2026-09-16T08:27:03Z
batch OT-TS-2026-W38-012 · RFC 3161 token · inclusion proof
root dbe93cb6b2158496df2f60f3b6822537...

Independent retrieval

2026-09-16T08:20:26.475270ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005842
observed 7533749f589f4801712192bc94b5c6ee...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:26.461443ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005842/manifest.json
observed feb4e71605ea3ae52ab7c2aff925ad4e...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:26.446887ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005842/publication.md
observed 3383528cb022714ee77546876217473c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139
2026-09-16T08:20:26.433817ZHTTP 200 · MATCH
https://opentechnical.org/p/OT-2026-000005842/publication.txt
observed 5f27305ab1dad6f8a56ed4cb2378045c...
fetched by instance-3.rotem.ai from 34.69.0.72, which resolved the name to 35.239.157.139

Requested from infrastructure separate from the publication system, over the public internet, with no credential. A MATCH means an ordinary internet client could fetch the publication and received exactly the bytes recorded above.

Independent archive

External archivePending Canonical URLs are submitted to an independent archive in batches.

A capture held by an outside archive is evidence that does not depend on OpenTechnical continuing to exist. It supplements the records above; it does not replace them.

Third-party custody

Custody packagePending Custody packages are produced weekly.